gdb - gdb“数字无效的二进制运算”(gdb “Invalid binary operation on numbers”)

Question

At work, while debugging our program with gdb, it sometimes repsonds to a simple "next" command with "Invalid binary operation on numbers".

(在工作中，使用gdb调试程序时，有时会响应一个简单的“下一个”命令，该命令“对数字进行无效的二进制运算”。)

Mighty annoying.

(强大的烦人。)

Googling finds absolutely no hints.

(谷歌搜索完全没有提示。)

It is C++, so perhaps that has something inside gdb confused in some way;

(它是C ++，所以也许gdb内部有些东西有些混乱；)

I have no clue.

(我没有任何线索。)

Anyone?

(任何人？)

  ask by Steve Biederman translate from so

Answer 1

The only way I can think of that this could happen: you have some active display which requires GDB to evaluate some expression every time it stops, and that expression can't be evaluated, yielding Invalid binary operation on numbers error.

(我能想到的唯一方法是：您有一个活动的display ，需要GDB每次停止时都对其求值，并且该表达式无法求值，从而Invalid binary operation on numbers错误时产生Invalid binary operation on numbers 。)

Use info display to see current "auto display" expressions.

(使用info display可查看当前的“自动显示”表达式。)